Head-mounted display device

Abstract

The embodiment of the utility model provides head-mounted display equipment, and relates to the technical field of head-mounted display products. The head-mounted display device comprises a front frame and two display assemblies corresponding to two eyes of a user respectively. The display assembly comprises an optical machine, an optical waveguide lens and a bearing part. In the same display assembly, the optical machine and the optical waveguide lens are both arranged on the bearing part, the bearing part is rotationally connected with the front frame, and the bearing part can drive the optical machine and the optical waveguide lens to rotate relative to the front frame so as to adjust the optical waveguide lens to the preset angle position. Thus, after the front frame deforms, the position of the image displayed by the display assembly can be adjusted by rotating the bearing piece used for arranging the optical waveguide lens and the optical machine, and normal image fusion of the images displayed by the two display assemblies can be facilitated.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of head-mounted display products, and in particular to a head-mounted display device. Background Art

[0002] Virtual Reality (VR), Augmented Reality (AR), and Mixed Reality (MR) are emerging multimedia technologies in recent years, which can be applied to many fields such as games, education, movies, and medical treatment. A head-mounted display device is a wearable device that can display images. The head-mounted display device may include display components such as VR, AR, or MR, so that the head-mounted display device can display images in front of the user's line of sight.

[0003] In some related technologies, a head-mounted display device may include a frame and a display assembly, the frame is used to be worn on the user's head, the frame may include a front frame, two display assemblies may be provided on the front frame, and the two display assemblies may be used to display images in front of the user's left eye and right eye, respectively. The display assembly may include an optical waveguide lens and an optical machine, and both the optical waveguide lens and the optical machine may be fixedly arranged with the front frame.

[0004] Since users have different head circumference sizes, in order to make the head-mounted display device suitable for more people, the front frame often has a certain degree of elasticity. That is, the head-mounted display device can rely on the deformation of the front frame to be worn more comfortably and stably on the heads of users with different head circumferences.

[0005] However, in the related art, after the front frame is deformed, the images displayed in front of the left eye and the right eye of the user will shift, which will cause the images displayed by the two display components to have a certain degree of non-fusion problem. Utility Model Content

[0006] An embodiment of the present application provides a head-mounted display device. After the front frame is deformed, the position of the image displayed by the display component can be adjusted by rotating the carrier used to set the optical waveguide lens and the optical machine, which is conducive to the normal fusion of the images displayed by the two display components.

[0007] The present application provides a head-mounted display device, which includes a front frame and two display components corresponding to two eyes of a user respectively. The display component includes an optical machine, an optical waveguide lens and a carrier. In the same display component, the optical machine and the optical waveguide lens are both arranged on the carrier, and the carrier is rotatably connected to the front frame. The carrier can drive the optical machine and the optical waveguide lens to rotate relative to the front frame to adjust the optical waveguide lens to a preset angle position. The preset angle position is the relative angle position between the preset optical waveguide lens of the display component and the corresponding eyes of the user.

[0008] The preset angle position may be a region range. After the optical waveguide lenses of the two display components are adjusted to the preset angle positions, when the user wears the head mounted display device, the images displayed by the two display components may be normally integrated.

[0009] The head-mounted display device provided by the embodiment of the present application can drive the optical machine and the optical waveguide lens to rotate by rotating the bearing member when the front frame is deformed, so as to adjust the relative angle position between the optical waveguide lens and the user's corresponding eye, so that when the front frame is deformed to different degrees, the optical waveguide lens can be adjusted to a preset angle position, so that the images displayed by the optical waveguide lenses of the two display components can be located at the preset display position, and further, the images displayed by the optical waveguide lenses of the two display components can be normally integrated. In addition, the position of the image displayed by the display component can be changed without changing the relative position of the optical machine and the optical waveguide lens of the display component, which is not likely to affect the image light beam incident on the coupling region of the optical waveguide lens, and is not likely to affect the utilization rate of the image light beam projected by the optical machine, and is not likely to affect the effect of the image displayed by the display component, the energy utilization rate of the head-mounted display device, etc.

[0010] In a possible implementation, the display assembly further includes a motor, and the motor is fixedly arranged with the front frame. In the same display assembly, the output end of the motor is transmission-connected with the carrier, and the motor is used to drive the carrier to rotate. In this way, the motor can be used to drive the carrier to move, which is conducive to realizing automatic adjustment of the position of the image displayed by the optical waveguide lens. In addition, after the optical waveguide lens is adjusted to a preset angle position by the motor, the carrier can be locked by the motor to lock the position of the optical waveguide lens, which is conducive to keeping the optical waveguide lens at the preset angle position.

[0011] In a possible embodiment, the display assembly further includes a rack, the rack is slidably matched with the front frame, the output end of the motor is provided with a first gear, and the carrier is provided with a second gear. In the same display assembly, the first gear and the second gear are both meshed with the rack, and the output end of the motor is transmission-connected to the carrier through the first gear, the rack and the second gear. In this way, it is convenient to realize the transmission connection between the motor and the carrier. In addition, the structure for realizing the transmission connection between the motor and the carrier is relatively simple, occupies less space and has higher reliability. Furthermore, the first gear and the second gear are connected through the rack transmission, which is convenient for arranging the first gear and the second gear at a position where the distance between them is relatively far, so that the motor, which is far away from the second gear, drives the carrier to rotate through the second gear.

[0012] In a possible implementation, the head mounted display device further includes a detection component, which is used to detect the deformation of the front frame. The motor is electrically connected to the detection component. In the same display component, the motor is used to drive the carrier to rotate according to the deformation of the front frame detected by the detection component. In this way, the rotation angle of the carrier can be controlled according to the deformation of the front frame, which is conducive to controlling the motor to automatically adjust the optical waveguide lens to a preset angle position.

[0013] In a possible implementation, the detection assembly includes a stress sensor disposed on the front frame, and the stress sensor is used to detect the deformation of the front frame. The motor is electrically connected to the stress sensor. In the same display assembly, the motor is used to drive the carrier to rotate according to the deformation of the front frame detected by the stress sensor. In this way, the components of the detection assembly do not need to be disposed on the display assembly, and the sensor for obtaining the deformation of the front frame is easy to set up and occupies less space. In addition, compared with laser, infrared and other sensors, the detection of the deformation of the front frame by the stress sensor is not easily affected by objects disposed around the front frame.

[0014] In a possible implementation, the front frame includes two frames corresponding to the two display components, respectively. The carrier of the display component is rotatably connected to the corresponding frame, and the motor of the display component is fixedly arranged with the corresponding frame. The detection component includes two detection devices corresponding to the two display components, respectively, and the detection devices corresponding to the display components are used to detect the deformation amount of the corresponding frame. The motor of the display component is electrically connected to the corresponding detection device. In the same display component, the motor is used to drive the carrier to rotate according to the deformation amount of the corresponding frame detected by the corresponding detection device. In this way, each display component can be automatically adjusted according to the deformation amount of the corresponding frame, and the adjustment accuracy is high, which is conducive to the normal fusion of the images displayed by the two display components.

[0015] In a possible implementation, along the first direction, the detection device corresponding to the display assembly is arranged at the middle of the corresponding frame. The first direction is the arrangement direction of the two display assemblies. In this way, when the front frame is deformed due to the user wearing it, the deformation of the frame in the middle of the first direction is larger, which is conducive to the detection device to obtain the deformation, and the motor is conducive to controlling the rotation of the carrier according to the deformation obtained by the detection device.

[0016] In a possible implementation, the head-mounted display device further includes temples and a main board. The temples are hinged to the front frame, and the main board is disposed inside the temples. The detection component and the motor are both electrically connected to the main board via a flexible circuit board. In this way, the detection component can send the detected deformation of the front frame to the main board, and the main board can issue a control instruction for controlling the motor according to the deformation of the front frame detected by the detection component, so as to facilitate the control of the output of the motor according to the deformation of the front frame detected by the detection component. In addition, the main board is disposed inside the temples, so that the layout of the components of the head-mounted display device and the distribution of the weight can be more reasonable. In addition, the detection component and the motor are both electrically connected to the main board via a flexible circuit board, so as to facilitate the electrical connection between the main board disposed on the temples and the detection component and the motor disposed on the front frame when the temples are hinged to the front frame.

[0017] In a possible implementation, the display assembly further includes a knob, which is rotatably connected to the front frame and is disposed on the outer surface of the front frame. In the same display assembly, the knob is transmission-connected to the carrier, and the knob is used to drive the carrier to rotate. In this way, the optical waveguide lens can be adjusted to a preset angle position by manually rotating the knob by the user, and the structure is simple, which facilitates the adjustment of the optical waveguide lens.

[0018] In a possible implementation, a connection portion is provided in the middle of the lens frame of the front frame along the first direction, and the carrier of the display assembly is rotatably connected to the corresponding lens frame at the connection portion of the corresponding lens frame. In this way, when the optical waveguide lens needs to rotate at the same angle, the path for the two ends of the optical waveguide lens to swing in the first direction is shorter, and the space required to be reserved for the optical waveguide lens and the carrier to swing is smaller. In addition, the distance between the position where the carrier is used to connect to the front frame and the position where the optical machine is installed can be made smaller, and the requirements for the connection strength of the connection between the carrier and the front frame can be smaller.

[0019] In a possible implementation, a connecting shaft is provided on the carrier, and both ends of the connecting shaft extend along the second direction, and the carrier is rotatably connected to the front frame via the connecting shaft. The second direction is perpendicular to the first direction. In this way, it is convenient to realize the rotatable connection between the carrier and the front frame. In addition, it is also convenient to adjust the images displayed by the two display components to a position where normal image fusion can be achieved.

[0020] In a possible implementation, in the same display assembly, the optical engine and the optical waveguide lens are both fixedly connected to the carrier, so that the relative positions of the optical engine and the optical waveguide lens of the same display assembly are not easily moved after calibration, which is conducive to maintaining the effect of the image displayed by each display assembly.

[0021] In a possible implementation, in the same display assembly, the optical engine is bonded and fixed to the carrier, so that when assembling the components of the display assembly, it is convenient to align the optical engine with the optical waveguide lens fixed on the carrier.

[0022] In a possible implementation, the carrier includes a mounting frame and a sleeve. In the same display assembly, the mounting frame is fixedly arranged with the sleeve, at least part of the optical machine is sleeved in the sleeve, the optical machine is fixedly connected with the sleeve, the mounting frame is fixedly connected with the edge of the optical waveguide lens, a connecting shaft is fixedly arranged on the mounting frame, and the mounting frame is rotatably connected with the front frame through the connecting shaft. In this way, it is convenient to realize the fixed arrangement of the optical machine, the optical waveguide lens and the carrier, and the optical machine, the optical waveguide lens and the carrier are relatively stable after being connected. In addition, the mounting frame is rotatably connected with the front frame through the connecting shaft fixedly arranged on the mounting frame, so that the carrier can be rotated by driving the connecting shaft to rotate, and it is relatively convenient to drive the carrier to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a head mounted display device provided in an embodiment of the present application;

[0024] Figure 2 A perspective view of a front frame of a head mounted display device provided in an embodiment of the present application;

[0025] Figure 3 An exploded view of a front frame of a head mounted display device provided in an embodiment of the present application;

[0026] Figure 4 An exploded view of two display components of a head mounted display device provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of a display component of a head mounted display device provided in an embodiment of the present application;

[0028] Figure 6 A perspective view of a head mounted display device provided in an embodiment of the present application;

[0029] Figure 7 A schematic diagram of a front frame of a head mounted display device provided in an embodiment of the present application;

[0030] Figure 8 A schematic diagram of another head-mounted display device provided in an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 100. Frame;

[0033] 110, front frame; 111, frame; 1111, connecting part; 112, nose bridge;

[0034] 120, temples;

[0035] 200, display component;

[0036] 210, bearing member; 211, mounting frame; 212, sleeve; 213, connecting shaft; 214, second gear;

[0037] 220, optical machine;

[0038] 230. Optical waveguide lens;

[0039] 240, motor; 241, first gear;

[0040] 250, rack;

[0041] 260, knob;

[0042] 300, detection component; 310, detection device;

[0043] 400, motherboard;

[0044] 500, flexible circuit board;

[0045] x, first direction; y, second direction; z, third direction. DETAILED DESCRIPTION

[0046] The terms used in the implementation method part of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The implementation method of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0047] The embodiment of the present application provides a head-mounted display device, which is a device that can be worn on the head of a user and can be used to display an image in front of the user's line of sight. The head-mounted display device may include but is not limited to a virtual reality (VR) device, an augmented reality (AR) device, or a mixed reality (MR) device. The embodiment of the present application takes the head-mounted display device as an AR device as an example for explanation, for example, the head-mounted display device may be AR glasses.

[0048] Figure 1 A schematic diagram of a head mounted display device provided in an embodiment of the present application, wherein the x direction is a first direction, the y direction is a second direction, the z direction is a third direction, the first direction is perpendicular to the second direction, the first direction is perpendicular to the third direction, and the second direction is perpendicular to the third direction. When the head mounted display device is worn on the user's head for normal use, the first direction is the left and right direction of the user, the second direction is the up and down direction of the user, and the third direction is the front and back direction of the user.

[0049] like Figure 1As shown, in an embodiment of the present application, a head-mounted display device may include a frame 100 and two display components 200 corresponding to two eyes of a user, respectively. The two display components 200 are set on the frame 100 and arranged along a first direction. The frame 100 is used to be worn on the head of the user, and the two display components 200 are used to display images in front of the corresponding eyes of the user.

[0050] In an embodiment of the present application, the frame 100 may include a front frame 110 and two temples 120 respectively arranged at both ends of the front frame 110 in a first direction, the two temples 120 may be used to hook on the two ears of the user respectively, and the front frame 110 may be placed on the nose of the user to wear the head-mounted display device on the user's head.

[0051] In some examples, the temple 120 can be fixedly arranged with the front frame 110. For example, the temple 120 can be an integral structure with the front frame 110.

[0052] In other examples, the temple 120 may be hinged to the front frame 110 via a hinge assembly, so that the temple 120 and the front frame 110 may be folded to facilitate storage of the head-mounted display device.

[0053] In the embodiment of the present application, the front frame 110 may include two frames 111 arranged along a first direction and a nose bridge 112 arranged between the two frames 111, the two frames 111 are fixedly connected through the nose bridge 112, and each frame 111 is connected to a temple 120 at one end away from the nose bridge 112 in the first direction, and the nose bridge 112 is used to be placed on the user's nose to be supported by the user's nose.

[0054] Exemplarily, the two mirror frames 111 and the nose bridge 112 may be an integral structure.

[0055] In the embodiment of the present application, the two display components 200 correspond to the two frames 111 respectively, and the display components 200 include a light waveguide lens 230. The light waveguide lens 230 of the display component 200 is assembled at the corresponding frame 111. The frame 111 can be used to carry the light waveguide lens 230 of the corresponding display component 200, so that after the user wears the head-mounted display device, the light waveguide lenses 230 of the two display components 200 can respectively display images in front of the user's corresponding eyes. Specifically, after the user wears the head-mounted display device, the light waveguide lens 230 located on the left is used to display images in front of the user's left eye, and the light waveguide lens 230 located on the right is used to display images in front of the user's right eye.

[0056] Figure 2 A perspective view of the front frame of a head-mounted display device provided in an embodiment of the present application.

[0057] like Figure 2 As shown, in the embodiment of the present application, the display assembly 200 further includes an optical engine 220, and the optical engine 220 can be disposed on the front frame 110. In the same display assembly 200, the optical engine 220 is used to project an image beam to the coupling-in area of ​​the light waveguide lens 230, so that the light waveguide lens 230 can display an image according to the image beam projected by the optical engine 220.

[0058] Since different users may have different head circumferences, in order to make the head mounted display device more comfortable and stable to wear on the heads of users with different head circumferences, the front frame 110 often has a certain elasticity, that is, the front frame 110 can be made of a material with a certain elasticity. In this way, the head mounted display device can be more comfortable and stable to wear on the heads of users with different head circumferences through the deformation of the front frame 110.

[0059] In some related technologies, the optical machine and the optical waveguide lenses are fixed to the front frame, and the two display components are often calibrated based on the relative angle position between the optical waveguide lenses and the user's corresponding eyes when the front frame is not deformed, so that when the front frame is not deformed, the images displayed by the two display components can be normally integrated. However, when the front frame is deformed, the relative angle position between the optical waveguide lenses of the two display components and the user's corresponding eyes will change, causing the images displayed by the optical waveguide lenses of the two display components to shift, resulting in a certain degree of non-integration of the images displayed by the two display components. In other words, the images displayed by the head-mounted display device seen by the user will have problems such as ghosting.

[0060] To enable the images displayed by the two display components to be normally integrated when the front frame is deformed. In other related technologies, the optical waveguide lens and the front frame can be fixedly arranged, and the optical machine and the optical waveguide lens can be movably arranged. When the front frame is deformed, the position of the image displayed by the display component can be changed by adjusting the relative position of the optical waveguide lens and the optical machine in the same display component, so that the images displayed by the two display components can be normally integrated. However, after changing the relative position of the optical machine and the optical waveguide lens in the display component, the number of image light beams incident on the coupling area of ​​the optical waveguide lens will be affected, which may easily cause the problem of reduced utilization of the image light beam projected by the optical machine, and thus easily lead to problems such as poor effect of the image displayed by the optical waveguide lens and reduced energy utilization of the head-mounted display device.

[0061] Figure 3 An exploded view of the front frame of a head-mounted display device provided in an embodiment of the present application.

[0062] like Figure 3 As shown, and see Figure 2Based on this, in the embodiment of the present application, the display assembly 200 further includes a carrier 210. In the same display assembly 200, the optical engine 220 and the optical waveguide lens 230 are both arranged on the carrier 210, and the carrier 210 is rotatably connected to the front frame 110. The carrier 210 can drive the optical engine 220 and the optical waveguide lens 230 to rotate relative to the front frame 110 to adjust the optical waveguide lens 230 to a preset angle position. The preset angle position is the relative angle position between the preset optical waveguide lens 230 of the display assembly 200 and the corresponding eye of the user.

[0063] The preset angle position may be a region range. After the light waveguide lenses 230 of the two display components 200 are adjusted to the preset angle positions, the images displayed by the two light waveguide lenses 230 may be normally integrated when the user wears the head mounted display device.

[0064] In this way, when the front frame 110 is deformed, the optical engine 220 and the light waveguide lens 230 can be rotated by rotating the bearing 210 to adjust the relative angle position between the light waveguide lens 230 and the user's corresponding eye, so that when the front frame 110 is deformed to different degrees, the light waveguide lens 230 can be adjusted to a preset angle position, so that the images displayed by the light waveguide lenses 230 of the two display components 200 can be located at the preset display position, and further, the images displayed by the light waveguide lenses 230 of the two display components 200 can be normally integrated. In addition, the position of the image displayed by the display component 200 can be changed without changing the relative position of the optical engine 220 and the light waveguide lens 230 of the display component 200, which is not likely to affect the image beam incident on the coupling region of the light waveguide lens 230, and is not likely to affect the utilization rate of the image beam projected by the optical engine 220, and is not likely to affect the effect of the image displayed by the display component 200, the energy utilization rate of the head mounted display device, etc.

[0065] The preset display position is the relative position between the image displayed by the preset light waveguide lens 230 and the two eyes of the user. The preset display position can be an area range. When the images displayed by the light waveguide lenses 230 of the two display components 200 are located at the preset display position, the images displayed by the light waveguide lenses 230 of the two display components 200 can be normally integrated.

[0066] The carrier 210 of the display assembly 200 can be rotatably connected to the corresponding lens frame 111 so as to assemble the optical waveguide lens 230 of the display assembly 200 at the corresponding lens frame 111 .

[0067] Before rotating the carrier 210 to adjust the position of the image displayed by the display component 200, the optical engine 220 and the optical waveguide lens 230 of each display component 200 can be individually calibrated so that the image light beam projected by the optical engine 220 of each display component 200 has a higher utilization rate, thereby making the image displayed by each display component 200 have a better effect and the energy utilization rate of each display component 200 is higher.

[0068] The maximum angle at which the optical waveguide lens 230 and the optical machine 220 can be rotated by the carrier 210 can be determined according to the maximum deformation that may occur in the front frame 110. For example, the maximum angle at which the optical waveguide lens 230 and the optical machine 220 can be rotated by the carrier 210 can be set to 5° to 10°. When the maximum angle at which the optical waveguide lens 230 and the optical machine 220 can be rotated by the carrier 210 is set to 5°, the carrier 210 can rotate relative to the front frame 110 by -5°, -4°, -3°, -2°, -1°, -0.5°, 0.5°, 1°, 2°, 3°, 4°, 5°, etc.

[0069] For example, in the same display component 200, the optical engine 220 can be arranged at one end of the optical waveguide lens 230 away from the bridge of the nose 112, so that the arrangement of the optical engine 220 is more convenient. In addition, the optical engine 220 has less influence on the image displayed by the display component 200 seen by the user.

[0070] In some possible implementations, a connecting shaft 213 is provided on the carrier 210 , and the carrier 210 is rotatably connected to the front frame 110 via the connecting shaft 213 , and the axial direction of the connecting shaft 213 is perpendicular to the third direction.

[0071] In this way, it is easy to realize the rotational connection between the carrier 210 and the front frame 110, and adjust the images displayed by the optical waveguide lenses 230 of the two display components 200 to the preset display position for normal image fusion through the relative rotation between the carrier 210 and the front frame 110.

[0072] Exemplarily, the connecting axis 213 may be disposed perpendicularly or obliquely to the first direction.

[0073] Exemplarily, the connecting shaft 213 may be located on one side of the supporting member 210 in the second direction.

[0074] Exemplarily, the connecting shaft 213 may include a first structural segment and a second structural segment respectively located on both sides of the supporting member 210 in the second direction and coaxially arranged, and the supporting member 210 is rotatably connected to the front frame 110 through the first structural segment and the second structural segment respectively on both sides of the second direction.

[0075] In some possible implementations, both ends of the connecting shaft 213 extend along the second direction.

[0076] In this way, it is convenient to adjust the image displayed by the display component 200 along the first direction. When the image displayed by the display component 200 is adjusted, it is not easy to shift in the second direction, so that the images displayed by the two display components 200 can be adjusted to the preset display position for normal fusion.

[0077] In some examples, the connecting shaft 213 and the carrier 210 are fixedly arranged, and the connecting shaft 213 and the front frame 110 are rotatably connected.

[0078] In this way, the bearing member 210 can be driven to rotate by driving the connecting shaft 213 to rotate, and it is convenient to drive the bearing member 210 to rotate.

[0079] In some other examples, the connecting shaft 213 is rotatably connected to the carrier 210 , and the connecting shaft 213 is fixedly arranged to the front frame 110 .

[0080] In the embodiment of the present application, the frame 111 has a connecting portion 1111 , and the carrier 210 of the display assembly 200 is rotatably connected to the corresponding frame 111 at the connecting portion 1111 of the corresponding frame 111 .

[0081] When the connecting shaft 213 and the bearing member 210 are fixedly arranged, the connecting portion 1111 has a mounting hole corresponding to the connecting shaft 213 , the connecting shaft 213 is inserted into the corresponding mounting hole, and the connecting shaft 213 is rotationally matched with the hole wall of the corresponding mounting hole.

[0082] The connection portion 1111 can be arranged at various positions of the frame 111 in the first direction as required. For example, the connection portion 1111 can be arranged at one end of the frame 111 in the first direction close to the bridge of the nose 112, or the connection portion 1111 can be arranged at one end of the frame 111 in the first direction away from the bridge of the nose 112.

[0083] In some possible implementations, the connection portion 1111 is disposed at the middle of the frame 111 in the first direction. That is, in the first direction, the distance between the connection portion 1111 and the end of the frame 111 close to the bridge of the nose 112 and the distance between the connection portion 1111 and the end of the frame 111 away from the bridge of the nose 112 may be substantially equal.

[0084] In this way, when the light waveguide lens 230 needs to rotate at the same angle, the paths for the two ends of the light waveguide lens 230 in the first direction to swing along the third direction are shorter, and the space reserved in the third direction for the light waveguide lens 230 and the carrier 210 to swing is smaller. In addition, the distance between the position where the carrier 210 is used to connect with the front frame 110 and the position where the optical engine 220 is installed can be made smaller, and the requirements for the connection strength of the connection between the carrier 210 and the front frame 110 can be smaller.

[0085] In some possible implementations, in the same display assembly 200 , the optical engine 220 and the optical waveguide lens 230 may be rotatably arranged. For example, the optical engine 220 may be rotatably connected to the carrier 210 , and the optical waveguide lens 230 may be fixedly connected to the carrier 210 .

[0086] In some other possible implementations, in the same display assembly 200 , the optical engine 220 and the optical waveguide lens 230 are both fixedly connected to the carrier 210 .

[0087] In this way, the relative positions of the optical engine 220 and the optical waveguide lens 230 of the same display component 200 are not easy to move after calibration, which is conducive to maintaining a good effect of the image displayed by each display component 200 and maintaining a high energy utilization rate for each display component 200.

[0088] In some possible implementations, in the same display assembly 200 , the optical engine 220 is bonded and fixed to the carrier 210 .

[0089] In this way, when the optical engine 220 , the carrier 210 and the optical waveguide lens 230 of the display assembly 200 are assembled, it is convenient to align the optical engine 220 with the optical waveguide lens 230 fixedly mounted on the carrier 210 .

[0090] Figure 4 An exploded view of two display components of a head-mounted display device provided in an embodiment of the present application.

[0091] like Figure 4 As shown, and see Figure 3 In some possible implementations, the carrier 210 includes a mounting frame 211 and a sleeve 212. In the same display assembly 200, the mounting frame 211 and the sleeve 212 are fixedly arranged, at least a portion of the optical engine 220 is sleeved in the sleeve 212, the optical engine 220 is fixedly connected to the sleeve 212, the mounting frame 211 is fixedly connected to the edge of the optical waveguide lens 230, a connecting shaft 213 is fixedly arranged on the mounting frame 211, and the mounting frame 211 is rotatably connected to the front frame 110 via the connecting shaft 213.

[0092] In this way, it is easy to realize the fixed arrangement of the optical engine 220, the optical waveguide lens 230 and the carrier 210, and the optical engine 220, the optical waveguide lens 230 and the carrier 210 are relatively stable after being connected. In addition, the mounting frame 211 is rotatably connected to the front frame 110 through the connecting shaft 213 fixedly arranged on the mounting frame 211, so that the carrier 210 can be rotated by driving the connecting shaft 213 to rotate, and it is relatively convenient to drive the carrier 210 to rotate.

[0093] The inner cavity of the sleeve 212 runs through both ends of the sleeve 212. The light-emitting end of the optical engine 220 can pass through the sleeve 212 to project the image light beam to the coupling region of the optical waveguide lens 230, or the light-emitting section of the optical engine 220 can be located in the sleeve 212, and the image light beam projected by the optical engine 220 can be emitted from the sleeve 212 to be projected to the coupling region of the optical waveguide lens 230.

[0094] Illustratively, in the same display assembly 200 , at least one of the inner wall and the end surface of the sleeve 212 can be bonded and fixed to the optical engine 220 .

[0095] Exemplarily, the installation frame 211 may be a full frame structure, a half frame structure, a single-side frame structure, or the like.

[0096] For example, the mounting frame 211 is a full-frame structure. In the same display assembly 200 , the mounting frame 211 surrounds the light waveguide lens 230 , and the edges of the light waveguide lens 230 are fixedly connected to the mounting frame 211 .

[0097] For example, the mounting frame 211 is a single-sided frame edge structure, that is, the mounting frame 211 is a strip-shaped or arc-shaped frame edge structure. In the same display component 200, the mounting frame 211 can be fixedly connected to at least a portion of the edge of one side of the optical waveguide lens 230 in the second direction.

[0098] Exemplarily, the mounting frame 211 and the sleeve 212 of the same carrier 210 may be an integral structure.

[0099] Exemplarily, the edge of the optical waveguide lens 230 may be fixedly connected to the mounting frame 211 by means of snap connection, fastener connection, bonding, etc.

[0100] Figure 5 A schematic diagram of a display component of a head mounted display device provided in an embodiment of the present application, Figure 6 A perspective view of a head-mounted display device provided in an embodiment of the present application.

[0101] like Figure 5 , Figure 6 As shown, in some possible implementations, the display assembly 200 further includes a motor 240, and the motor 240 is fixedly disposed with the front frame 110. In the same display assembly 200, the output end of the motor 240 is transmission-connected with the carrier 210, and the motor 240 is used to drive the carrier 210 to rotate.

[0102] In this way, the motor 240 can be used to drive the carrier 210 to move, which is conducive to automatically adjusting the position of the image displayed by the light waveguide lens 230. In addition, after the light waveguide lens 230 is adjusted to a preset angle position by the motor 240, the carrier 210 can be locked by the motor 240 to lock the position of the light waveguide lens 230, which is conducive to keeping the light waveguide lens 230 at the preset angle position.

[0103] The motor 240 of the display component 200 may be fixedly disposed on the corresponding frame 111 . Specifically, the motor 240 of the display component 200 may be fixedly disposed on an end of the corresponding frame 111 away from the bridge of the nose 112 .

[0104] In some embodiments, the display assembly 200 further includes a rack 250, the rack 250 is slidably matched with the front frame 110, the output end of the motor 240 is provided with a first gear 241, and the carrier 210 is provided with a second gear 214. In the same display assembly 200, the first gear 241 and the second gear 214 are both meshed with the rack 250, and the output end of the motor 240 is transmission-connected to the carrier 210 through the first gear 241, the rack 250, and the second gear 214.

[0105] In this way, the motor 240 can drive the first gear 241 to rotate, and the rotating first gear 241 can drive the rack 250 to slide relative to the front frame 110, and then drive the second gear 214 to rotate, so as to drive the bearing member 210 to rotate. In this way, it is convenient to realize the transmission connection between the motor 240 and the bearing member 210. In addition, the structure for realizing the transmission connection between the motor 240 and the bearing member 210 is relatively simple, occupies less space, and has higher reliability. Furthermore, the first gear 241 and the second gear 214 are transmission-connected through the rack 250, which is convenient for arranging the first gear 241 and the second gear 214 at a position where the distance between them is relatively far, so that the motor 240, which is far away from the second gear 214, drives the bearing member 210 to rotate through the second gear 214.

[0106] In the same display assembly 200 , the rotation axis of the first gear 241 is coaxial with the rotation axis of the output end of the motor 240 , and the rotation axis of the second gear 214 is coaxial with the rotation axis of the connecting shaft 213 .

[0107] Exemplarily, the rack 250 may include a first tooth segment, a second tooth segment and a connecting segment, the first tooth segment and the second tooth segment have a transmission tooth structure, the connecting segment may be a rod-shaped structure with a smooth surface, the first tooth segment and the second tooth segment are connected by the connecting segment, the first tooth segment is meshed with the first gear 241, and the second tooth segment is meshed with the second gear 214, which can make the strength of the rack 250 higher and make the rack 250 not easily damaged.

[0108] In other embodiments, the output end of the motor 240 is provided with a first gear 241, and the carrier 210 is provided with a second gear 214. In the same display assembly 200, the first gear 241 is meshed with the second gear 214, and the output end of the motor 240 is connected to the carrier 210 through the first gear 241 and the second gear 214.

[0109] In some other embodiments, the display assembly 200 further includes a chain, a first sprocket is provided at the output end of the motor 240, and a second sprocket is provided at the carrier 210. In the same display assembly 200, the first sprocket and the second sprocket are both sleeved in the chain and meshed with the chain, and the output end of the motor 240 is transmission-connected to the carrier 210 via the first sprocket, the chain, and the second sprocket.

[0110] like Figure 6 As shown, in some possible implementations, the head mounted display device further includes a detection component 300, and the detection component 300 is used to detect the deformation of the front frame 110. The motor 240 is electrically connected to the detection component 300. In the same display component 200, the motor 240 is used to drive the bearing member 210 to rotate according to the deformation of the front frame 110 detected by the detection component 300.

[0111] In this way, the rotation angle of the carrier 210 can be controlled according to the deformation of the front frame 110, which is helpful to control the motor 240 to automatically adjust the optical waveguide lens 230 to a preset angle position.

[0112] Exemplarily, the detection component 300 may include one or more of the following sensors: a stress sensor, a laser sensor, an infrared sensor, etc.

[0113] For example, the detection component 300 may include an infrared sensor, which includes an infrared emitting device and an infrared receiving device, one of which is fixedly set on the front frame 110, and the other of which is fixedly set on the carrier 210.

[0114] In some embodiments, the detection assembly 300 includes a stress sensor disposed on the front frame 110, and the stress sensor is used to detect the deformation of the front frame 110. The motor 240 is electrically connected to the stress sensor. In the same display assembly 200, the motor 240 is used to drive the carrier 210 to rotate according to the deformation of the front frame 110 detected by the stress sensor.

[0115] In this way, the components of the detection component 300 do not need to be arranged on the display component 200, and the sensor for obtaining the deformation amount of the front frame 110 is easy to be arranged and occupies less space. In addition, compared with laser, infrared and other sensors, the detection of the deformation amount of the front frame 110 by the stress sensor is not easily affected by the objects arranged around the front frame 110.

[0116] Exemplarily, the stress sensor may be a piezoelectric strain gauge, a piezoelectric ceramic sensor, an optical fiber strain sensor, or the like.

[0117] In some embodiments, the detection assembly 300 includes two detection devices 310 corresponding to the two display assemblies 200, respectively. The detection device 310 corresponding to the display assembly 200 is used to detect the deformation amount of the corresponding mirror frame 111. The motor 240 of the display assembly 200 is electrically connected to the corresponding detection device 310. In the same display assembly 200, the motor 240 is used to drive the bearing member 210 to rotate according to the deformation amount of the corresponding mirror frame 111 detected by the corresponding detection device 310.

[0118] In this way, each display assembly 200 can be automatically adjusted by the deformation amount of the corresponding frame 111, and the adjustment accuracy is high, which is conducive to normal fusion of the images displayed by the two display assemblies 200.

[0119] Exemplarily, the detection device 310 may be a stress sensor.

[0120] In some embodiments, along the first direction, the detection device 310 corresponding to the display assembly 200 is disposed at the middle of the corresponding mirror frame 111 .

[0121] In this way, when the front frame 110 is deformed due to being worn by the user, the deformation of the frame 111 in the middle of the first direction is larger, which is beneficial for the detection device 310 to obtain the deformation and for the motor 240 to control the rotation of the carrier 210 according to the deformation obtained by the detection device 310.

[0122] In some embodiments, the head mounted display device further includes a main board 400, which is disposed in the temple 120. The detection assembly 300 and the motor 240 are both electrically connected to the main board 400 through the flexible circuit board 500, so that the detection device 310 is electrically connected to the motor 240 through the flexible circuit board 500 and the main board 400.

[0123] In this way, the detection component 300 can send the detected deformation of the front frame 110 to the mainboard 400, and the mainboard 400 can issue a control instruction for controlling the motor 240 according to the deformation of the front frame 110 detected by the detection component 300, so as to facilitate the control of the output of the motor 240 according to the deformation of the front frame 110 detected by the detection component 300. In addition, the mainboard 400 is arranged in the temple 120, so that the layout of the components of the head-mounted display device and the distribution of the weight can be more reasonable. In addition, the detection component 300 and the motor 240 are both electrically connected to the mainboard 400 through the flexible circuit board 500, so as to facilitate the electrical connection between the mainboard 400 arranged on the temple 120 and the detection component 300 and the motor 240 arranged on the front frame 110 when the temple 120 is hinged with the front frame 110.

[0124] Exemplarily, the head-mounted display device may include two main boards 400 corresponding to the two display components 200, and the two main boards 400 may be respectively arranged in the two temples 120, each main board 400 is connected to a flexible circuit board 500, and each main board 400 is electrically connected to the motor 240 of the corresponding display component 200 and the detection device 310 corresponding to the display component 200 through the connected flexible circuit board 500.

[0125] Exemplarily, the detection device 310 may be electrically connected to the flexible circuit board 500 via a cable, so that the detection device 310 is arranged at a position away from the flexible circuit board 500 .

[0126] In some examples, the head mounted display device further includes a speaker, which may be disposed within the temple 120 , and the speaker may be electrically connected to the mainboard 400 .

[0127] Figure 7 A schematic diagram of the front frame of a head-mounted display device provided in an embodiment of the present application.

[0128] like Figure 7 As shown, in some other possible implementations, the display assembly 200 further includes a knob 260, which is rotatably connected to the front frame 110 and is disposed on the outer surface of the front frame 110. In the same display assembly 200, the knob 260 is transmission-connected to the carrier 210, and the knob 260 is used to drive the carrier 210 to rotate.

[0129] In this way, the light waveguide lens 230 can be adjusted to a preset angle position by the user manually turning the knob 260 , which has a simple structure and is convenient for adjusting the light waveguide lens 230 .

[0130] For example, the knobs 260 may be disposed on surfaces of both ends of the front frame 110 in the first direction.

[0131] For example, the knob 260 may be disposed on a surface of the front frame 110 on a side away from the light waveguide lens 230 in the second direction.

[0132] For example, in the same display assembly 200 , the connecting shaft 213 provided on the carrier 210 may be coaxially fixedly connected to the knob 260 .

[0133] For example, in the same display assembly 200, the knob 260 and the carrier 210 can be connected by a gear assembly. Specifically, the connecting shaft 213 provided on the carrier 210 can be provided with a third gear, and the knob 260 can be provided with a fourth gear, and the third gear meshes with the fourth gear to enable the knob 260 to be connected by a gear assembly.

[0134] The third gear and the fourth gear may be spur gears or bevel gears.

[0135] In some examples, a locking mechanism is further provided between the carrier 210 and the front frame 110, and the locking mechanism includes a locked state and an unlocked state. The locking mechanism in the locked state is used to lock the position of the carrier 210 and the front frame 110. The locking mechanism in the unlocked state is used to release the position lock of the carrier 210 and the front frame 110.

[0136] Exemplarily, the locking mechanism includes a locking tongue slidably connected to the front frame 110, and the locking tongue can slide relative to the front frame 110 along the third direction. When the locking mechanism is in a locked state, the locking tongue is inserted into a tooth groove of a third gear fixedly arranged with the carrier 210 or a fourth gear fixedly arranged with the knob 260 to lock the position of the carrier 210 and the front frame 110. When the locking mechanism is in an unlocked state, the locking tongue is located outside the rotation path of the third gear and the fourth gear to release the position lock of the carrier 210 and the front frame 110.

[0137] In the embodiment of the present application, the frame 111 can be a full-frame structure, a half-frame structure, a single-side frame structure, etc., so that the AR glasses can be full-frame glasses, half-frame glasses, floating frame glasses, etc.

[0138] Figure 8 A schematic diagram of another head-mounted display device provided in an embodiment of the present application.

[0139] like Figure 8 As shown, in some examples, the frame 111 is a half-frame structure, and the frame 111 surrounds the edge of the waveguide lens 230 of the corresponding display component 200 on one side in the second direction and the edges of the waveguide lens 230 on both sides in the first direction.

[0140] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0141] In the embodiments of the present application, the devices or elements referred to or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0142] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0143] The term "plurality" in this article refers to two or more than two. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship; in a formula, the character " / " indicates that the previous and next associated objects are in a "division" relationship.

[0144] It should be understood that the various numerical numbers involved in the embodiments of the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0145] It can be understood that in the embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Claims

1. A head mounted display device, characterized in that: The device comprises a front frame and two display components corresponding to two eyes of a user respectively; The display assembly includes an optical machine, an optical waveguide lens and a carrier; In the same display assembly, the optical engine and the optical waveguide lens are both arranged on the carrier, the carrier is rotatably connected to the front frame, and the carrier can drive the optical engine and the optical waveguide lens to rotate relative to the front frame to adjust the optical waveguide lens to a preset angle position; The preset angle position is a preset relative angle position between the light waveguide lens of the display component and the corresponding eye of the user.

2. The head mounted display device according to claim 1, characterized in that: The display assembly further includes a motor, and the motor is fixedly arranged with the front frame; In the same display assembly, the output end of the motor is transmission-connected to the supporting member, and the motor is used to drive the supporting member to rotate.

3. The head mounted display device according to claim 2, characterized in that: The display assembly further includes a rack, the rack is slidably matched with the front frame, the output end of the motor is provided with a first gear, and the bearing member is provided with a second gear; In the same display assembly, the first gear and the second gear are both meshed with the rack, and the output end of the motor is transmission-connected to the carrier through the first gear, the rack and the second gear.

4. The head mounted display device according to claim 2, characterized in that: It also includes a detection component, which is used to detect the deformation amount of the front frame; The motor is electrically connected to the detection component; In the same display assembly, the motor is used to drive the carrier to rotate according to the deformation of the front frame detected by the detection assembly.

5. The head mounted display device according to claim 4, characterized in that: The detection component includes a stress sensor disposed on the front frame, and the stress sensor is used to detect the deformation amount of the front frame; The motor is electrically connected to the stress sensor; In the same display assembly, the motor is used to drive the carrier to rotate according to the deformation of the front frame detected by the stress sensor.

6. The head mounted display device according to claim 4, characterized in that: The front frame includes two mirror frames corresponding to the two display components respectively; The bearing member of the display assembly is rotatably connected to the corresponding mirror frame, and the motor of the display assembly is fixedly arranged to the corresponding mirror frame; The detection component comprises two detection devices corresponding to the two display components respectively, and the detection devices corresponding to the display components are used to detect the deformation amount of the corresponding frame; The motor of the display assembly is electrically connected to the corresponding detection device; In the same display assembly, the motor is used to drive the supporting member to rotate according to the deformation amount of the corresponding frame detected by the corresponding detection device.

7. The head mounted display device according to claim 6, characterized in that: Along the first direction, the detection device corresponding to the display assembly is arranged at the middle of the corresponding lens frame; Wherein, the first direction is the arrangement direction of the two display components.

8. The head mounted display device according to claim 4, characterized in that: It also includes temples and main board; The temples are hinged to the front frame, and the main board is arranged inside the temples; The detection component and the motor are both electrically connected to the main board via a flexible circuit board.

9. The head mounted display device according to claim 1, characterized in that: The display assembly further comprises a knob, the knob is rotatably connected to the front frame, and the knob is arranged on the outer surface of the front frame; In the same display assembly, the knob is transmission-connected to the carrier, and the knob is used to drive the carrier to rotate.

10. The head mounted display device according to any one of claims 1 to 9, characterized in that: Along the first direction, a connecting portion is provided in the middle of the frame of the front frame; The supporting member of the display assembly is rotatably connected to the corresponding mirror frame at the connecting portion of the corresponding mirror frame.

11. The head mounted display device according to any one of claims 1 to 9, characterized in that: The bearing member is provided with a connecting shaft, both ends of the connecting shaft extend along the second direction, and the bearing member is rotatably connected to the front frame through the connecting shaft; The second direction is perpendicular to the first direction.

12. The head mounted display device according to any one of claims 1 to 9, characterized in that: In the same display assembly, the optical engine and the optical waveguide lens are both fixedly connected to the carrier.

13. The head mounted display device according to claim 12, characterized in that: In the same display assembly, the optical engine is bonded and fixed to the carrier.

14. The head mounted display device according to claim 12, characterized in that: The bearing member comprises a mounting frame and a sleeve; In the same display assembly, the mounting frame is fixedly arranged on the sleeve, at least a portion of the optical engine is sleeved in the sleeve, the optical engine is fixedly connected to the sleeve, the mounting frame is fixedly connected to the edge of the optical waveguide lens, a connecting shaft is fixedly arranged on the mounting frame, and the mounting frame is rotatably connected to the front frame via the connecting shaft.

Images